Eliud Kipchoge has broken the world record in the marathon, coming in at just over 2 hours and 1 min. He thinks breaking 2 hours is possible. If it seems fascinating in the world of numbers that the record for an idiosyncratic distance could converge on an integer in an event measured in units 1/3600 as small, it is not really that odd.* It does have an almost poetic sound to it, however, to run a marathon in two hours. It was about 2:15 when I started following track, by Abebe Bikila of Ethiopia - who ran it at the Rome Olympics. It wasn't until the 1964 Olympics that I started to become aware. Bikila did it barefoot. Take that.
Kipchoge is older (37, just looked it up) but thinks he can do better still. It's hard to count him out at this point.
*There are a lot of events, so the record for one converging on an integer, when they are always improving, isn't that strange. Running the 100-yard dash in 10 seconds had already been accomplished before 1900 and now it is converging on 9 seconds. The race is seldom run, however. The 100 meter is what is run now, and that converged on 10 seconds in the 1960s. The 4-minute mile was first run in the 1950s and the record is well below that now. High jumping 8 feet - a foot is an unusual measure; pole-vaulting 20 feet, ditto. Simple numbers show up all the time.